後,我已經制定了一個問題,我有以下幾點:mysql命令通過SUM
SELECT Event_id, SUM(Money) AS 'Total Money'
FROM prize
GROUP BY Event_id
ORDER BY 'Total Money' DESC;
但是它不總彙票。如果我省略了''標記並呼叫Total_Money列,它工作正常:
SELECT Event_id, SUM(Money) AS Total_Money
FROM prize
GROUP BY Event_id
ORDER BY Total_Money DESC
這是爲什麼? 有沒有辦法調用欄目總金額和排序我想要的?
您使用報價',不要使用報價。使用'字符 – 2012-07-24 10:13:27